What can we do to change these settings while running a program on the processor from the SPI setting menu shown in the picture?
They do this because this is the nature of SPI bus and this is how bus communications is done. Look:
Data transmission
Every SPI clock cycle is a full duplex data transmission. The master sends a bit on the MOSI pin and the slave reads it, while the slave sends a bit on the MISO pin and the master reads it. This sequence is true even if you only need an one-directional data transfer.
Hello,
Same thread is opened here https://community.nxp.com/t5/NXP-Model-Based-Design-Tools/SPI-Setup-Menu/m-p/1282847#M6096
Let's solve the issue there.
Regards,
Marius